Visit Product Series:

9400 series relief valves are specifically designed for vapor line safety relief applications and cryogenic liquid containers.

Capacity Determined at Set Pressure of BARG* 24.1
Capacity Determined at Set Pressure of PSIG* 350
Inlet Connection (in.) 1/4
Inlet Connection (mm) 6.35
Length (in.) 2.6
Length (mm) 66
Maximum Allowable Working Pressure (BARG) 41.4
Maximum Allowable Working Pressure (PSIG) 600
Maximum Temperature Rating (°C) 74
Maximum Temperature Rating (°F) 165
Minimum Temperature Rating (°C) -196
Minimum Temperature Rating (°F) -320
Nominal Size (in.) 1/4
Orifice Size (in.) 0.062
Orifice Size (mm) 40
Outlet Connection (in.) 3/4
Outlet Connection (mm) 19
Pressure Setting (PSIG) 350
Recommended Delivery Pressure Range (BARG) 0.7 to 41.4
Recommended Delivery Pressure Range (PSIG) 10 to 600
Weight (kg) 0.1
Weight Lbs. 0.2204622
Wrench Hex Flats (in.) 7/8"
Wrench Hex Flats (mm) 22.4
ASME Certification? No
Connection Type M. NPT x F. NPT
Drain or Weep Hole? No
Inlet Connection (DN) 8
Kd Value 0.686
Material Details Body: Brass|Spring: Stainless Steel|Seat Retainer: Brass|Pipe-Away Adapter: Brass
Nominal Size (DN) 8
Outlet Connection (DN) 20
Pipe Away Option Included (& attached)
pipe_away_option_included Sold Separately (B9412-2)
Pressure Relief Valve Flow Capacity (SCFM Air) 312.9651
pressure_relief_valve_pipe-away_adapter B-9412-2
Product Type Brass In-line Cryogenic Gas Relief Valves
Seat Material Type PTFE
Brass Pipe-Away Adapter